/* ==========================================================================
   Variables
   ========================================================================== */
:root {
    --bg-primary: #0f1115;
    --bg-surface: #181b20;
    --bg-surface-hover: #22262e;
    --bg-input: #121418;

    --accent-gold: #c8aa6e;
    --accent-gold-hover: #e0c888;
    --accent-gold-dim: rgba(200, 170, 110, 0.15);

    --text-primary: #e6e8ec;
    --text-secondary: #8a909d;
    --text-muted: #5a606d;

    --border-color: #2a2e37;
    --border-focus: #c8aa6e;

    --shadow-main: 0 10px 30px rgba(0, 0, 0, 0.5);
    --bg-backdrop: rgba(0, 0, 0, 0.75);

    --radius-sm: 4px;
    --radius-md: 8px;

    --font-family: 'Cinzel', 'EB Garamond', 'Garamond', 'Georgia', serif;
}

/* ==========================================================================
   Base
   ========================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-family), serif;
    line-height: 1.5;
    padding: 2rem 1rem;
    max-width: 900px;
    margin: 0 auto;
}

input,
select,
button {
    font-family: inherit;
}

html.no-scroll,
body.no-scroll {
    overflow: hidden;
}

/* ==========================================================================
   Helpers
   ========================================================================== */
.bot-gap {
    margin-bottom: 1.25rem;
}

/* ==========================================================================
   Headers
   ========================================================================== */
h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-gold);
    text-transform: uppercase;
    text-align: center;
}

h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

h2::before {
    content: "";
    display: inline-block;
    width: 4px;
    height: 1rem;
    background-color: var(--accent-gold);
    border-radius: 2px;
}

/* ==========================================================================
   Top-matter
   ========================================================================== */
.header-container {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.header-container h1 {
    margin: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    flex-shrink: 0;
}

.nav-link {
    color: var(--text-muted);
    transition: color 0.2s ease, transform 0.2s ease, filter 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-link:hover {
    color: var(--accent-gold);
    filter: drop-shadow(0 0 6px var(--accent-gold-dim));
}

/* ==========================================================================
   Inputs
   ========================================================================== */
input[type="text"],
select {
    width: 100%;
    background-color: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.65rem 0.9rem;
    font-size: 0.92rem;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="text"]:focus,
select:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-gold-dim);
}

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
}

/* ==========================================================================
   Tables
   ========================================================================== */
.table-container {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    height: 280px;
    overflow-y: auto;
    box-shadow: var(--shadow-main);
    position: relative;
}

.table-container::-webkit-scrollbar {
    width: 8px;
}

.table-container::-webkit-scrollbar-track {
    background: var(--bg-surface);
}

.table-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.table-container::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

table {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.col-name {
    width: 45%;
}

.col-id {
    width: 80px;
}

.col-tags {
    width: 35%;
}

.col-info {
    width: 45px;
}

th, td {
    padding: 0.65rem 0.85rem;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    border-bottom: 1px solid var(--border-color);
    line-height: 1;
    user-select: none;
    -webkit-user-select: none;
}

tr:last-child td {
    border-bottom: none;
}

tbody tr {
    cursor: pointer;
    transition: background-color 0.15s ease;
}

tbody tr:hover {
    background-color: var(--bg-surface-hover);
}

td.col-id, td.col-info, th.col-id, th.col-info {
    text-align: center;
}

td.col-id {
    font-family: monospace;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

td.col-tags {
    color: var(--text-muted);
    font-size: 0.82rem;
}

.centred-cell {
    text-align: center;
    vertical-align: middle;
}

.info-link {
    color: var(--accent-gold);
    text-decoration: none;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: background-color 0.2s ease, transform 0.15s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
    transform-origin: center center;
}

.info-link:hover {
    background-color: var(--accent-gold-dim);
}

.info-link:active {
    transform: scale(0.95);
}

.info-icon {
    width: 20px;
    height: 20px;
    display: block;
}

tbody:empty::after {
    content: "No items available";
    display: block;
    padding: 1.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    text-align: center;
    font-style: italic;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
#button-container {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

button {
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

#clear-button {
    background-color: transparent;
    color: var(--accent-gold);
    border: 1px solid var(--accent-gold);
}

#clear-button:hover:not(:disabled) {
    background-color: var(--accent-gold-dim);
    color: var(--accent-gold-hover);
    border-color: var(--accent-gold-hover);
    box-shadow: 0 0 10px var(--accent-gold-dim);
}

#download-button {
    background-color: var(--accent-gold);
    color: var(--bg-primary);
}

#download-button:hover:not(:disabled) {
    background-color: var(--accent-gold-hover);
    box-shadow: 0 0 12px var(--accent-gold-dim);
}

/* ==========================================================================
   Disabled Buttons
   ========================================================================== */
button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

#clear-button:disabled {
    background-color: transparent;
    color: var(--text-muted);
    border-color: var(--border-color);
}

#download-button:disabled {
    background-color: var(--border-color);
    color: var(--text-muted);
}

/* ==========================================================================
   Stats
   ========================================================================== */
.stat-counter {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 1px;
    text-transform: uppercase;
    display: flex;
    flex-direction: column;
}

.tarnished-count {
    color: var(--accent-gold);
    font-weight: 700;
}

/* ==========================================================================
   Loading
   ========================================================================== */
.page-loader {
    position: fixed;
    inset: 0;
    background-color: var(--bg-primary);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    transition: opacity 0.5s ease-in-out, visibility 0.5s ease-in-out;
    pointer-events: auto;
    cursor: wait;
}

.great-rune-loader {
    position: relative;
    width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 0 12px var(--accent-gold-dim));
}

.rune-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--accent-gold-dim);
    box-sizing: border-box;
}

.ring-top-left {
    width: 60px;
    height: 60px;
    top: 0;
    left: 5px;
    border-top-color: var(--accent-gold-hover);
    border-left-color: var(--accent-gold);
    animation: runeSpin 2.4s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

.ring-top-right {
    width: 60px;
    height: 60px;
    top: 0;
    right: 5px;
    border-top-color: var(--accent-gold-hover);
    border-right-color: var(--accent-gold);
    animation: runeSpinReverse 2.4s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

.ring-bottom {
    width: 68px;
    height: 68px;
    bottom: 0;
    border-bottom-color: var(--accent-gold-hover);
    border-left-color: var(--accent-gold);
    animation: runeSpin 3.2s linear infinite;
}

.rune-arc {
    position: absolute;
    width: 1px;
    height: 100px;
    background: linear-gradient(
            to bottom,
            transparent,
            var(--accent-gold) 20%,
            var(--accent-gold-hover) 50%,
            var(--accent-gold) 80%,
            transparent
    );
    box-shadow: 0 0 8px var(--accent-gold-dim);
    animation: arcPulse 1.8s ease-in-out infinite alternate;
}

#loader-text {
    font-size: 0.85rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--accent-gold);
    text-shadow: 0 0 10px var(--accent-gold-dim);
    animation: textGlow 1.8s ease-in-out infinite alternate;
}

@keyframes runeSpin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes runeSpinReverse {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(-360deg);
    }
}

@keyframes arcPulse {
    0% {
        opacity: 0.3;
        transform: scaleY(0.85);
    }
    100% {
        opacity: 1;
        transform: scaleY(1.05);
    }
}

@keyframes textGlow {
    0% {
        opacity: 0.3;
    }
    100% {
        opacity: 1;
    }
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* ==========================================================================
   Warning
   ========================================================================== */
.replacement-warning-container {
    display: grid;
    grid-template-rows: 0fr;
    opacity: 0;
    transition: grid-template-rows 0.25s ease, opacity 0.25s ease, margin-top 0.25s ease;
    margin-top: 0;
}

.replacement-type-group:has(option[value="empty"]:checked) .replacement-warning-container {
    grid-template-rows: 1fr;
    opacity: 1;
    margin-top: 0.6rem;
}

.replacement-warning-content {
    overflow: hidden;
    background-color: var(--accent-gold-dim);
    border-left: 2px solid var(--accent-gold);
    border-radius: 0 var(--radius-sm, 4px) var(--radius-sm, 4px) 0;

    color: var(--text-primary);
    font-size: 0.85rem;
    line-height: 1.5;
    padding: 0 0.8rem;
    transition: padding 0.25s ease;
}

.replacement-type-group:has(option[value="empty"]:checked) .replacement-warning-content {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

/* ==========================================================================
   Help & Instructions Modal
   ========================================================================== */
.help-btn-floating {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;

    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    border: 1px solid var(--border-focus);
    background-color: var(--bg-surface);
    color: var(--text-primary);
    cursor: pointer;

    display: flex;
    align-items: center;
    justify-content: center;

    box-shadow: 0 4px 12px var(--shadow-main);
    transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}

.help-btn-floating:hover {
    background-color: var(--bg-surface-hover);
    border-color: var(--accent-gold-hover);
    color: white;
    box-shadow: 0 0 16px var(--accent-gold-dim);
}

.help-icon {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    pointer-events: none;
}

.instructions-modal {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-focus);
    border-radius: var(--radius-md);

    max-width: 750px;
    width: 90%;
    padding: 1.5rem;
    box-shadow: var(--shadow-main);

    margin: auto;
    position: fixed;
    inset: 0;

    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.2s ease-out, transform 0.2s ease-out, display 0.2s allow-discrete, overlay 0.2s allow-discrete;
}

.instructions-modal[open] {
    opacity: 1;
    transform: scale(1);
}

@starting-style {
    .instructions-modal[open] {
        opacity: 0;
        transform: scale(0.95);
    }
}

.instructions-modal::backdrop {
    background: var(--bg-backdrop);
    backdrop-filter: blur(3px);
    opacity: 0;
    transition: opacity 0.2s ease-out, display 0.2s allow-discrete, overlay 0.2s allow-discrete;
}

.instructions-modal[open]::backdrop {
    opacity: 1;
}

@starting-style {
    .instructions-modal[open]::backdrop {
        opacity: 0;
    }
}

.instructions-modal.is-closing {
    opacity: 0;
    transform: scale(0.95);
}

.instructions-modal.is-closing::backdrop {
    opacity: 0;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.3rem;
    color: var(--accent-gold);
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s ease;
}

.modal-close-btn:hover {
    color: var(--accent-gold-hover);
}

.modal-body {
    line-height: 1.6;
    max-height: 60vh;
    overflow-y: auto;
    padding: 1rem 0 1.5rem 1.5rem;
    scrollbar-gutter: stable;
    overscroll-behavior: contain;
}

.modal-body::-webkit-scrollbar {
    width: 8px;
}

.modal-body::-webkit-scrollbar-track {
    background: var(--bg-surface);
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.instruction-section {
    margin-bottom: 1.5rem;
    padding-right: 1.25rem;
}

.instruction-section h3 {
    color: var(--accent-gold);
    font-size: 1.1rem;
    margin-top: 0;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--accent-gold-dim);
    padding-bottom: 0.25rem;
}

.instruction-section p {
    margin: 0 0 0.75rem 0;
    font-size: 0.95rem;
}

.instruction-steps {
    padding-left: 1.25rem;
    margin: 0;
}

.instruction-steps li {
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    line-height: 1.5;
}

.instruction-steps li::marker {
    color: var(--accent-gold);
    font-weight: bold;
}

.modal-body a {
    color: var(--accent-gold);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s ease;
}

.modal-body a:hover {
    color: var(--accent-gold-hover);
}

.modal-body code {
    background-color: var(--bg-input);
    color: var(--accent-gold);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    font-size: 0.85em;
    font-family: monospace;
}